Full Closure on State Route 29 (SR-29) for Culvert Work Between Rutherford, Oakville in Napa County

Full closures occur Feb. 25-Feb. 28 between 10 p.m. and 6 a.m. the following morning

NAPA COUNTY — Caltrans has scheduled a full closure of State Route 29 (SR-29) beginning on February 25 through February 28 between 10 p.m. and 6 a.m. the next mornings for culvert replacement work and road stabilization in between Rutherford and Oakville roads (south of Glos Lane) with a detour through Silverado trail.
During this stage of construction, crews will begin to remove the existing culvert and replace it with a cast in place box culvert.
Flaggers will be present and Changeable Message Signs (CMS) signs will be posted to help the traveling public.
In addition, Caltrans will have a single lane closure with reversing one-way traffic control of State Route 29 (SR-29) in effect continuously beginning at 6 a.m. on Thursday February 26 for three weeks. Crews are working a seven-day schedule, Monday through Sunday through March.
This emergency project is expected to be completed in Spring, 2026.
All work is weather dependent.
Detour SR-29 Northbound toward St. Helena/Calistoga Turn right onto Oakville Cross Road. Turn Left onto Silverado Trail Road Turn Left onto SR-128 to Rutherford to get onto SR-29
Detour SR-29 Southbound toward the city of Napa Turn left onto SR-128 in Rutherford Turn right onto Silverado Road Turn right onto Oakville Cross Road to get onto SR-29.
Drivers should expect delays and to slow down in the construction area to help crews stay safe.
Please drive with caution. Slow for the Cone Zone and Be Work Zone Alert. Caltrans thanks motorists for their patience while we work to maintain our state’s highways, bridges, and tunnels.
Future traffic advisories will be sent out if dates or times change.
For 24/7 traffic updates, follow 511.org: https://twitter.com/511SFBay For real-time traffic, click on Caltrans QuickMap: http://quickmap.dot.ca.gov/